Rocket.Chat/app/ui-message/client/blocks/ActionsBlock.html

<!-- {
	"type": "actions",
	"elements": [
		{
			"type": "button",
			"text": {
				"type": "plain_text",
				"text": "Button",
				"emoji": true
			}
		},
		{
			"type": "button",
			"text": {
				"type": "plain_text",
				"text": "Button",
				"emoji": true
			}
		},
		{
			"type": "button",
			"text": {
				"type": "plain_text",
				"text": "Button",
				"emoji": true
			}
		}
	]
},
-->
<template name="ActionsBlock" arguments="elements">
	<fieldset class="block-kit-debug">
		<legend>Actions Block</legend>

		<div class="rc-button__group">
			{{#each element in elements}}
				<div>{{>ButtonElement text=element.text}}</div>
			{{/each}}
		</div>
	</fieldset>
</template>